#include <stdio.h>
// 求最大公约数
unsigned int Mcd(unsigned int a, unsigned int b)
{
    if (a % b == 0)
        return b;
    else
        return Mcd(b, a % b);
}
int main(void)
{
    unsigned int mcd;
    mcd = Mcd(66, 88);

    printf("The maximum common dividor is %d \n", mcd);
}
